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Spun-laced compound nonwoven material containing line elastomer, preparation method and equipment thereof

A technology of non-woven materials and elastomer materials, which is applied in the field of non-woven materials, can solve the problems that the materials cannot meet the elastic requirements and the manufacturing process is complicated, and achieve good contact comfort and wearing safety, soft hand feel, and reduce energy consumption. Effect

Inactive Publication Date: 2008-07-30
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nonwoven structure involved in this patent does contain continuous filaments, but does not involve linear elastomers, and it does not directly compound continuous filaments between layers of fiber webs, but passes through multiple intermediate processes. Fix it to form a three-dimensional structure, and then spunlace composite reinforcement, the manufacturing process is complicated
However, the main purpose is to prepare high-absorbency materials, and the formed materials cannot meet the elastic requirements

Method used

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  • Spun-laced compound nonwoven material containing line elastomer, preparation method and equipment thereof
  • Spun-laced compound nonwoven material containing line elastomer, preparation method and equipment thereof
  • Spun-laced compound nonwoven material containing line elastomer, preparation method and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The linear elastic body material 2 is made of spandex filament, its tensile breaking strength is 1.5 cN / dtex, and its tensile breaking elongation is 500%. When the fixed elongation is 100%, the elastic recovery rate is equal to 100%; when the fixed elongation is 300%, the elastic recovery rate is equal to 96%. The fiber 3 used in the two-layer web is 100% PET fiber, the fiber length is 38.0mm, the tensile strength of the single fiber is 4.5cN / dtex, and the tensile elongation at break is 18.5%. The equipment shown in Figure 4, the carding machine 1, the carding machine 2, and the spunlace equipment are all 2.5m wide. The PET fiber is opened and mixed in two ways, and then input into the carding machine 1 and the carding machine 2 respectively. After carding, two layers of fiber webs 1 with single fibrillation and uniform thickness are formed. The weight per unit area of ​​each layer of fiber webs is 25g / m 2 . Wherein the fiber web 1 output by the carding machine 1 is p...

Embodiment 2

[0044] The linear elastic body material 2 is a rubber band with a tensile breaking strength of 3.0 cN / dtex and a tensile breaking elongation of 700%. When the fixed elongation is 100%, the elastic recovery rate is equal to 99%; when the fixed elongation is 300%, the elastic recovery rate is equal to 97%. The fibers 3 used in the two layers of fiber webs are all 50% nylon+50% viscose fibers, and the average length of the fibers is 38.0 mm. The tensile strength of nylon single fiber is 4.0cN / dtex, and the tensile elongation at break is 15%; the tensile strength of viscose is 2.8cN / dtex, and the tensile elongation at break is 20%. As shown in Figure 4, the carding machine 1, carding machine 2, and spunlace equipment are all 1.8m wide. The fiber 3 is opened and mixed in two ways, and then input into the carding machine 1 and the carding machine 2 respectively. After carding, two layers of fiber webs 1 with single fibrillation and uniform surface density are formed. The weight per...

Embodiment 3

[0046] Two rolls of elastic body material spandex core-spun yarn 2 are selected, the tensile breaking strength is 4.5cN / dtex, and the tensile breaking elongation is 450%. When the fixed elongation is 100%, the elastic recovery rate is equal to 99.5%; when the fixed elongation is 300%, the elastic recovery rate is equal to 98%. The fibers 3 used in the three-layer web are all 50% PET+50% viscose fibers, and the average fiber length is 38.0 mm. The tensile strength of PET single fiber is 3.5cN / dtex, and the tensile elongation at break is 20.5%; the tensile strength of viscose single fiber is 3.0cN / dtex, and the tensile elongation at break is 23%. As shown in Figure 4, the width of carding machine 1, carding machine 2, carding machine 3 and spunlace equipment is 2.5m. The fiber 3 is opened and mixed in three ways, and then input into the carding machine 1, carding machine 2 and carding machine 3 respectively. After carding, two layers of fiber webs 1 with single fibrillation and...

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Abstract

The invention relates to a spunlace composite nonwoven material which comprises filiform elastomer, the preparation method and the equipment of the spunlace nonwoven material. The material consists of two or more layers of fiber nets and at least one layer of basically mutual parallel filiform elastomer material. The equipment consists of at least two channels of opening and carding systems, namely at least two sets of opening, blending and carding facilities, a filiform elastomer material unreeling device between the output end of a front carding machine and the input end of a back carding machine, a spunlace facility, a drying device and a winding facility. The method: the filiform elastomer material is unreeled and overlapped with the fiber net carded out by the carding machine, and then the filiform elastomer material that is in an extended state and fiber engagements are reinforced, dried and winded through a spunlace reinforcing method to finally form windingly packaged filiform elastomer spunlace composite material. The material is suitable for the fields of the medically used elastic bandage and the like and has the advantages that the manufacturing process is simple, the adhesive is not used, the raw material is saved, the energy consumption is reduced and the touching comfort and the application safety are excellent.

Description

technical field [0001] The invention belongs to the field of non-woven materials, in particular to a water-entangled composite non-woven material containing elastic linear bodies. Background technique [0002] At present, there are many methods to combine fibers, woven fabrics, knitted fabrics, non-woven fabrics, paper, and combinations of various materials with fiber webs, and form multi-layer composite non-woven materials through hydroentanglement reinforcement to improve the durability of materials. Performance can sometimes endow materials with various functions to meet the needs of production and life. For example, the wood pulp and the two-layer fiber net are spunlace composited by air-laid method, and the pulp spunlace composite nonwoven fabric processed has good absorption performance, and at the same time greatly reduces the production cost. [0003] Patent CN1470698 relates to a four-layer structure composite non-woven fabric and its production method. It adopts t...

Claims

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Application Information

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IPC IPC(8): D04H3/10B32B5/02D04H3/005D04H3/018D04H3/11
Inventor 靳向煜陈涵高海根徐熊耀唐守星吴海波殷保璞
Owner DONGHUA UNIV
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